DocumentCode
3196515
Title
Recent Experimental Results on the Fast Ion Instability at the 2.5 GeV PLS
Author
Kim, E.-S. ; Han, Y.J. ; Huang, J.-Y. ; Park, S.J. ; Park, C.D. ; Ko, I.S. ; Fukuma, H. ; Ikeda, H.
Author_Institution
Pohang Accelerator Laboratory, Pohang, KyungBuk, 790-784 Korea
fYear
2005
fDate
16-20 May 2005
Firstpage
466
Lastpage
468
Abstract
We report on the recent experimental results on the fast-ion instability at the 2.5 GeV Pohang Light Source (PLS). In order to enhance the fast-ion instability in the PLS, we inserted helium gas to the storage ring in order to increase the vacuum pressure. With the gaps in the bunch train which is large enough to avoid multiturn ion trapping, we observed increase of a factor of 3-4 in the vertical beam sizes for the increased vacuum pressure up to 40 nTorr. The instability growth rate is obtained as a function of vacuum pressure and is also compared with the simulation results.
Keywords
Computational modeling; Computer simulation; Electron beams; Helium; Ion accelerators; Laboratories; Light sources; Production facilities; Size measurement; Storage rings;
fLanguage
English
Publisher
ieee
Conference_Titel
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN
0-7803-8859-3
Type
conf
DOI
10.1109/PAC.2005.1590470
Filename
1590470
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